Heat conserver



Oct. 11, 1932- E, HUMPHRVEVILLE 1 1 HEAT CONSERVER Filed Oct. 27. 1930 EY .I. E 1 m W N T E? A i W W B w m .H u a H WITNESS.-

Patented Oct. 11, 1932 PATENT oFFicr.

EDWIN HUMII-IREVILLE, OF LANCASTER, PENNSYLVANIA HEAT CONSERVERApplication filed October 27, 1930. Serial No. 491,467.

This invention relates to heat conservers, and has for an object toprovide a device for co-acting with the gas burner, of an ordinary gasrange, or cooking stove, which shall in an improved manner, direct theflame from .in the formation of dead air pockets immediately under theutensil which are insulating in nature, and in fact, waste the heatrather than conserve it. I

The present invention, therefore, is directed to a sleeve whichsurrounds the burner, having air vents therein for the admission ofsecondary air, and formed to conduct the heat from the burner up towithin a relatively short distance from the bottom of the utensil,thereby conserving a much greater portion of such heat than ordinarilyresults from gas combustion.

An object of the invention is, therefore, to provide a band which shallbe adjustable,

I and which shall accommodate itself-to burners of difierent sizes, tosurround and embrace the burner, and to extend upwardly to the grid todirect products of combustion and air heated thereby, in a more directpath toengagement with the bottom of the utensil. The invention isdirected to other objects and possesses other features of novelty andadvantage, some of which, together with the foregoing, will behereinafter more fully 4 set forth.

In the drawing:

Figure 1 is a top plan view of a conventional gas burner, andaccessories, with the heat conserver applied thereto, I

' Figure'2 is a fragmentary sectional view,

taken on line 2-2 of Figure 1,

Figure 3 is a detail view of the band, or sleeve, seen from theexterior, or convex side, and

Figure'& is a top plan view of the band showing in detail, the manner ofadjusting to different size burners and securing thereto.

Like characters of reference indicate corresponding parts throughout theseveral views.

The heat conserver, which forms the subject matter of this application,is adapted to be associated with gas burner installations of varioustypes, here represented by the burner proper A, the grid B, and stovetop C. It is to be understood, however, that these features form no partof the present invention, but only the structure to which the inventionis applied, and will vary with the as particular construction ofdifferent makers,

and the drawing is only illustrative of such devices.

The invention comprises a band 10, of flexible sheet metal, or the like,having slits 11, 7 formed therein, at spaced intervals throughout themajor part of its length, and the sections of metal of alternate, oroccasional strips, between the slits, stamped inwardly as indicated toform louvres 12.

In the drawing, these inwardly stamped strips have been shown asalternating with 1 the sections remaining in plane with the band,

but it is to be understood, that such proportion as may be chosen, maybe so stamped in-, 8 wardly.

At one end, the band is provided with a neck 13, reduced in width, tocorrespond substantially with the length of the slits 11.

The band 1 0, constructed as stated, which forms the heat conserver ofthis invention,

is applied to the burner by simply curving it about the exterior ends ofthe burner sections, as shown at Figure 1, and the louvres 12, will bearranged to bear upon the tops of the arms of the burner, as shown tosupport the band in position. The band, having been curved about theburner, the reduced end 13 will be inserted through any one of the slits11, which presents itself, and after being 9 drawn tight enough toprovide the adequate support, the inwardly extending end is bentbackwardly upon itself, as shown at 14:, thus forming a lock to retainthe device in position. 1

It will be obvious, that while the interval between the burners and thegrid arms does not vary greatly in diflerent types of burners, therewill, nevertheless, be some variation, and it will be perfectly obviousthat the louvres 12 may be bent sufficiently at the time of applicationto properly position the band, to engage snugly against the under sideof the grid, as shown at Figure 2.

The products of combustion from the orifices of the burner, and the'airheated thereby, will be directed upwardly by this encirtion. :Thelouvres, about the circumference of this band, will serve by theintroduction of air to prevent the flame from the burner en- 7 gagingagainst the band, and will also tend 1 bodyinga central inlet flueand-fluesbranchto direct the flame and products of combustion inwardlytoward the center, and therefore, toward theflpoint of use. 7

Of course, the heat conserver, herein illus trated, may be modified invarious ways with out departing from the invention herein set forth andhereinafter claimed.

The invention is hereby-claimed as follows r 1. The combination with aburner of a band having transverse slits forming louvres a therein, andmeans at its opposite ends for interconnection to form a hoop, saidlouvres being compressible for seating upon the burner-to hold thehoopata height determined thereby. i r

to vary the heights'of certain of said louvres adapted to bear upon theextremities of the arms and maintain the band in encircling position. i

6. The combination with-a gas burner embodying a central inlet flue andfines branchin 'therefrom and spaced'apart, of aband ad ustable tocircumference to encircle the extremities of the arms, and louvresformed in the band and compressible to vary the heights of certain ofsaid louvres adapted to bear upon the extremities of the arms andmaintain the band in encircling position at a height above the burnerdetermined by the proportion of said louvres so compressed.

7 The combination with a gas burner embodying a'central inlet fine andlines branching therefrom and spaced apart, of a band adjustable tocircumference to encircle the extremities of the arms, and inwardlystruck louvres formed in the band and compressible to vary theheights ofcertain of'saidlouvres adapted to bear upon the extremities of the armsand maintain the band in encircling po- "sition at a height abovetheburner'determined by the proportion of said louvresso compressed.

In testimony whereof I have signed my name to this specification.

EDWIN HUMPHREVILLE.

5 I 2. The combinat on with a gas burner embodying a centralinlet fineand flues branching therefrom and spaced apart, of a band adjustable tocircumference to encircle the extremities of the arms,and louvres formedin 0' the band and adapted to bear upon the extremities of the arms andmaintain the-band in encircling position.

3. The combination wlth a gas burner em- 5 ing therefrom and spacedapart, of a band adjustable to circumference to encircle the extremitiesof the arms, and inwardly struck louvres formed in the band and adaptedto bear upon the extremities of'the arms and 0 maintain the band inencircling position,

4. The combination with a gasburner embodying a central inlet flue andflues branch- 7 ing therefrom and, spaced apart, of a band adjustable tocircumference to encircle the 5 extremities of the arms, and louvresformed V

